Sold my 06 WR450 last week and had seller's remorse until I got my new 07. Rode the new 07 this afternoon to break it in. Way glad I upgraded. It is more agile, better power delivery and gearing, and just fun to ride. The only negative is the sorry excuse for a seat. It is worse than riding a 2x6. I will definitely change it. But it is a great bike. It is uncorked and has WB pipe and jetting. It exceeded my expectations.